Cut-off valve



FIG. 1 is a front perspective view of a cut-off valve, showing our new design;

FIG. 2 is a rear perspective view;

FIG. 3 is a front view;

FIG. 4 is a rear view;

FIG. 5 is a left side view;

FIG. 6 is a right side view;

FIG. 7 is a top view; and,

FIG. 8 is a bottom view.

The broken lines shown in FIGS. 1-8 are included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a cut-off valve, as shown and described. 